A vehicle lamp assembly and vehicle

Abstract

Embodiments of this application provide a vehicle lighting assembly, including a lens, a light switch, and a detector. The lens is used to converge reflected light from a target object to obtain a first light beam. The light switch is used to reflect the first light beam according to a modulation mode to obtain a second light beam. The detector is used to detect the second light beam. The light switch is also used to close an area on the light switch corresponding to the target object and open areas on the light switch other than the target object based on a first image, wherein the first image is generated based on the second light beam. The vehicle lighting assembly provided by this application embodiment can achieve anti-glare functionality efficiently and at low cost.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a vehicle lighting assembly and a vehicle. Background Technology

[0002] As the most critical lighting component of a car, headlights bear a significant responsibility when driving at night. Especially on poorly lit roads, drivers need to use high beams for safe driving. However, if there are oncoming or other vehicles in front, the high beams can dazzle their drivers, endangering driving safety. Therefore, high beams with automatic anti-glare functions were developed. The anti-glare principle of automatic anti-glare high beams, or adaptive high beams (ADB), is that when the vehicle's sensors detect an oncoming or other vehicle, the headlight controller automatically turns off the high beams or shuts off the corresponding area of ​​the oncoming vehicle's headlights, thus achieving an anti-glare effect. Figure 1 As shown.

[0003] To implement ADB (Adaptive Departure Warning) functionality, the vehicle's sensors are needed to detect the target's location. Currently, the mainstream sensors are ordinary cameras. The main component of an ordinary camera is a complementary metal-oxide-semiconductor (CMOS) chip; generally, the higher the resolution, the higher the price. Furthermore, cameras are typically located within the rearview mirror area inside the windshield. Implementing ADB requires coordinate transformation based on the camera's position and the headlights' positions, necessitating factory calibration of the relative positions of the headlights and camera. Summary of the Invention

[0004] The embodiments of this application provide a vehicle lighting assembly that can achieve anti-glare function efficiently and at low cost.

[0005] In a first aspect, a vehicle lighting assembly is provided, including a lens, a light switch, and a detector. The lens is used to converge reflected light from a target object to obtain a first light beam. The light switch is used to reflect the first light beam according to a modulation pattern to obtain a second light beam, and the detector is used to detect the second light beam. The light switch is also used to close an area on the light switch corresponding to the target object and open an area on the light switch other than the target object based on a first image generated based on the second light beam.

[0006] By using a light switch in the vehicle headlights to image external targets and then turning off the area on the light switch corresponding to the target, the effect of partially blocking the headlight illumination area can be achieved, thus preventing glare. At the same time, eliminating the need for a conventional camera for imaging also avoids the coordinate transformation process required in existing technologies, improving efficiency and reducing costs.

[0007] In conjunction with the implementation of the first aspect, in a first possible implementation of the first aspect, the optical switch is used to reflect the first light beam according to the modulation mode to obtain the second light beam, which includes: the optical switch being used to open a first region on the optical switch according to the modulation mode, and to close a second region on the optical switch; the second light beam includes the light reflected from the first region.

[0008] In conjunction with the first aspect or the first possible implementation of the first aspect, in the second possible implementation, the vehicle lamp assembly further includes a light switch controller for controlling the light switch to reflect the first light beam according to the modulation mode.

[0009] In a third possible implementation, in conjunction with the first aspect or any of the first to second possible implementations of the first aspect, the optical switch includes a plurality of optical devices for reflecting the first light beam according to a modulation mode, comprising: the plurality of optical devices for reflecting the first light beam according to the modulation mode.

[0010] In a fourth possible implementation, in combination with the first aspect or any of the first to third possible implementations of the first aspect, the optical switch controller is used to control the optical devices in the first region to turn on, and to control the optical devices in the second region to turn off.

[0011] In a fifth possible implementation, in combination with the first aspect or any of the first to fourth possible implementations of the first aspect, the optical switch controller is used to control the optical devices corresponding to the area of ​​the target object to be turned off, and to control the optical devices in areas other than the target object to be turned on.

[0012] The optics corresponding to the target area are turned off, achieving an anti-glare effect on the target object. The optics in areas other than the target object are turned on, achieving an illumination effect.

[0013] In a sixth possible implementation, in combination with the first aspect or any of the first to fifth possible implementations of the first aspect, there are multiple modulation modes, each modulation mode corresponding to a second beam.

[0014] In combination with the first aspect or any of the first to sixth possible implementations of the first aspect, in the seventh possible implementation, the more pixels the optical device corresponds to, the more modulation modes there are.

[0015] In an eighth possible implementation, in conjunction with the first aspect or any of the first to seventh possible implementations of the first aspect, the headlight assembly further includes a processing module; the processing module is configured to generate a second image based on the detection result obtained by the detector detecting the second beam, the second image containing the target object; the processing module is further configured to detect a corresponding region of the target object on the second image, and generate the first image based on the corresponding region.

[0016] By opening or closing certain areas of the optical switch according to multiple modulation modes, and generating a second image through a detector detection and processing module, the effect of reconstructing an image of the external environment is achieved.

[0017] In combination with the first aspect or any of the first to eighth possible implementations of the first aspect, in the ninth possible implementation, the optical switch is a digital micromirror device (DMD).

[0018] In combination with the first aspect or any of the first to ninth possible implementations of the first aspect, in the tenth possible implementation, the optical switch is a liquid crystal on silicon (LCOS).

[0019] In conjunction with the first aspect or any of the first to tenth possible implementations of the first aspect, in the eleventh possible implementation, the vehicle headlight assembly further includes a polarization converter PCS, the PCS being used to polarize the reflected light from the converged target image to obtain the first beam.

[0020] In conjunction with the first aspect or any of the first to eleventh possible implementations of the first aspect, in the twelfth possible implementation, the vehicle lamp assembly further includes a vehicle lamp light source, and the light switch is further used to reflect the light emitted by the vehicle lamp light source.

[0021] In conjunction with the first aspect or any of the first to twelfth possible implementations of the first aspect, in the thirteenth possible implementation, the vehicle light assembly further includes a synchronization module for controlling the vehicle light source, the detector, and the processing module. When the detector and the processing module are working, the vehicle light source does not emit light, or when the vehicle light source emits light, the detector and the processing module do not work.

[0022] In a second aspect, a means of transportation is provided, including a vehicle lighting assembly as described in the first aspect or any implementation thereof.

[0023] Thirdly, a method for preventing glare from vehicle lights is provided, applied to a vehicle light assembly as described in the first aspect or any implementation thereof. When the area corresponding to the target object is turned off, the light emitted by the vehicle light source reflected from the target object area does not illuminate the target object. This achieves the effect of preventing glare.

[0024] Fourthly, an imaging component is provided, including a lens, an optical switch, a detector, a color wheel, and a light source. The light source, color wheel, and optical switch are used to present a first image. The lens is used to converge reflected light from a target object to obtain a first light beam. The optical switch is used to reflect the first light beam according to a modulation mode to obtain a second light beam. The detector is used to detect the second light beam. The light source, color wheel, and optical switch are also used to present a second image based on the first image, wherein the first image is generated based on the second light beam.

[0025] By using a light switch in the projection device to image external targets and determining the user's next action based on the image result, it is possible to present the user with a picture of the action performed. This eliminates the need for a conventional camera, reducing costs.

[0026] In conjunction with the implementation of the fourth aspect, in a first possible implementation of the fourth aspect, the optical switch for reflecting the first light beam according to the modulation mode includes: the optical switch for opening a first region on the optical switch and closing a second region on the optical switch according to the modulation mode; the second light beam includes the light reflected from the first region.

[0027] In conjunction with the fourth aspect or the first possible implementation of the fourth aspect, in the second possible implementation, the imaging component further includes a processing module; the processing module is used to generate a first image based on the detection result obtained by the detector detecting the second beam, the first image being used to indicate whether the optical switch opens or closes a portion of the upper region of the optical switch.

[0028] In a third possible implementation, in conjunction with the fourth aspect or any of the first or second possible implementations of the fourth aspect, before generating the first image, the processing module is further configured to generate a second image based on the detection result, the second image containing the target object; the processing module is further configured to detect the corresponding region of the target object on the second image, and generate the first image based on the corresponding region.

[0029] In a fourth possible implementation, in combination with the fourth aspect or any of the first to third possible implementations of the fourth aspect, the optical switch is a digital micromirror device (DMD).

[0030] In a fifth possible implementation, in combination with the fourth aspect or any of the first to fourth possible implementations of the fourth aspect, the optical switch is a silicon-based liquid crystal LCOS.

[0031] In a sixth possible implementation, in combination with the fourth aspect or any of the first to fifth possible implementations of the fourth aspect, the imaging component further includes a polarization converter PCS, which is used to polarize the reflected light from the converged target image to obtain the first beam.

[0032] Fifthly, a projection device is provided, including an imaging component as described in the fourth aspect or any implementation thereof. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application and the prior art, the accompanying drawings used in the description of the embodiments and the prior art will be briefly introduced below.

[0034] Figure 1 This is a diagram illustrating the anti-glare function of vehicle headlights;

[0035] Figure 2 This is a schematic diagram of the structure of a vehicle lamp assembly according to an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of a vehicle lighting assembly implemented using a DMD according to an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of the structure of a vehicle lighting assembly implemented using LCOS according to an embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the structure of an imaging component implemented using a DMD according to an embodiment of this application;

[0039] Figure 6 This is a schematic diagram of the structure of an imaging component implemented using LCOS according to an embodiment of this application. Detailed Implementation

[0040] A digital micromirror device (DMD) is a pixel matrix composed of multiple micromirrors that allows for adjustment of the incident light direction by rotating the mirrors. The size of the matrix corresponds to the resolution of the DMD, such as 800×600, 1024×768, 1280×720, and 1920×1080. Each micromirror in the DMD can be individually controlled to turn on and off.

[0041] A liquid crystal on silicon (LCOS) is a very small matrix liquid crystal display device based on a reflective mode. Each pixel has its own circuitry to control its on / off state. LCOS controls the projected image by modulating the intensity or phase of the incident light. The size of the pixel matrix corresponds to the resolution of the LCOS. Incident light is converted into polarized light by a polarization conversion system (PCS). If the liquid crystal is modulated by an external signal and is at a bright display level, the polarization direction of the polarized light will rotate by 90 degrees after modulation by the LCOS, resulting in a bright display. When at a dark display level, the polarization direction of the light remains unchanged after modulation, resulting in a dark display.

[0042] Figure 2 This is a structural schematic diagram of a vehicle lamp assembly according to an embodiment of this application.

[0043] The vehicle headlight assembly includes a lens, an optical switch, and a detector. The lens focuses reflected light from a target object outside the headlight to obtain a first beam. The target object can be a vehicle, pedestrian, road sign, traffic light, etc. There can be one or more lenses. The first beam is incident on the optical switch. The optical switch can be a DMD or an LCOS. The optical switch has multiple optical components. When the optical switch is implemented using a DMD, these multiple optical components include a pixel matrix composed of multiple micromirrors. When the optical switch is implemented using an LCOS, these multiple optical components include a pixel matrix composed of liquid crystal on silicon. The optical switch reflects the first beam according to a modulation mode to obtain a second beam.

[0044] The vehicle headlight assembly may also include an optical switch controller. The optical switch controller is used to control the optical switch to reflect the first light beam according to a modulation mode. Specifically, when the optical switch is implemented using a DMD, the optical switch controller is a DMD driver. When the optical switch is implemented using an LCOS, the optical switch controller is an LCOS driver. The optical switch controller is specifically used to control multiple optics on the optical switch to reflect the first light beam according to a modulation mode.

[0045] A modulation pattern can be called a mask. Modulation patterns can be preset or randomly generated. There can be multiple modulation patterns. The optical switch reflects a corresponding second beam under each modulation pattern; therefore, one modulation pattern corresponds to one second beam. When the optical switch reflects the first beam according to multiple modulation patterns, it will obtain multiple second beams. The higher the resolution of the optical switch, the more modulation patterns it has; that is, the more pixels the optical device corresponds to, the more modulation patterns it has.

[0046] Each modulation mode corresponds to the opening and closing of a portion of the optical switch. The detector detects the light reflected from the opened portion of the optical switch. For each modulation mode, the optical switch opens a first region and closes a second region according to that modulation mode. The second beam consists of the light reflected from the first region. The detector is used to detect the second beam.

[0047] Specifically, the optical switch controller controls the optical components in the first region to open and the optical components in the second region to close. When the optical switch is implemented using a DMD, the DMD driver controls the micromirrors in the first region of the DMD to open and the micromirrors in the second region to close. Light reflected by the micromirrors in the first region can be detected by the detector, while light reflected by the micromirrors in the second region cannot be detected. When the optical switch is implemented using an LCOS, the LCOS driver controls the liquid crystal in the first region of the LCOS to open and the liquid crystal in the second region to close. The open liquid crystal is in a bright display state, and the closed liquid crystal is in a dark display state. Light reflected by the liquid crystal in the first region can be detected by the detector, while light displayed by the liquid crystal in the second region cannot be detected. The detector can be a light detector.

[0048] To prevent the detector from detecting light reflected from the closed area of ​​the optical switch, an absorber can be added to shield it. Alternatively, the reflection direction of the closed area can be adjusted to prevent detection.

[0049] After detecting the second beam, the detector sends the detection result to the processing module. The processing module generates a second image based on the detection result; this second image is a reconstructed image containing the external target object. In one implementation, the detection result includes light intensity values. When the light intensity values ​​sent by the detector to the processing module accumulate to a certain amount, the processing module reconstructs the image containing the external target object using a compressed sensing-based reconstruction algorithm. The purpose of this algorithm is to recover the external image using the light intensity data detected by the detector.

[0050] Taking the optical switch implemented via DMD as an example, the reconstruction algorithm is as follows:

[0051] Assume the original captured image is I, which is the image to be reconstructed using the reconstruction algorithm. Assume the DMD mask is P, and the signal detected by the detector is S, then S = P × I. Here, S and I are vectors, and P is a matrix. Let the intermediate result u = WI, and solve the following minimization problem to obtain u:

[0052] argmin u {||S-PW T u||2+β||u||1}

[0053] Make u = WW T u

[0054] W is the wavelet transform matrix or the compact frame transform matrix. Then, using the formula I = W... T u can then be used to obtain the reconstructed image I. This model can be solved using the ADMM alternating direction multiplier method.

[0055] After obtaining the second image, the processing module detects the region corresponding to the external target object in the second image and generates the first image based on the region corresponding to the target object. The target object can be detected using headlight detection or deep learning-based target detection methods, such as Faster-RCNN and YOLO. The target object can be a person, a vehicle, the taillights of a vehicle in front, or the headlights or driver of an oncoming vehicle. In one implementation, the first image is a black and white image, with the region corresponding to the target object in the first image being black and other regions being white. The light switch closes the region on the light switch corresponding to the target object and opens the region on the light switch excluding the target object based on the first image.

[0056] Specifically, the optical switch controller controls the optical components on the optical switch corresponding to the target object area to turn on, and controls the optical components on the optical switch in other areas to turn off. When the optical switch is implemented using a DMD, the processing module sends a first image to the DMD driver, and the DMD driver controls the micromirrors on the DMD corresponding to the target object area to turn off, and the micromirrors in other areas to turn on, based on the first image. When the optical switch is implemented using an LCOS, the processing module sends a first image to the LCOS driver, and the LCOS driver controls the liquid crystal on the LCOS corresponding to the target object area to turn off, and the liquid crystal in other areas to turn on, based on the first image.

[0057] Subsequently, the light emitted from the headlights is incident on the light switch. After reflection by the light switch, the light reflected from areas other than the target object is emitted from the headlights and illuminates the external environment, while the light reflected from the area corresponding to the target object is not emitted from the headlights and does not illuminate the target object. This achieves the anti-glare effect.

[0058] The processing module can be part of the headlight assembly, or part of the headlight itself, or it can be located on the vehicle outside the headlight.

[0059] The headlight assembly also includes a synchronization module, which controls the headlight source, detector, and processing module, enabling the headlight source and the detector and processing module to work in a time-sharing manner. That is, when the detector and processing module are working, the headlight source does not emit light, or when the headlight source is emitting light, the detector and processing module does not work.

[0060] The light source of a vehicle's headlights can be part of the headlight assembly or outside of it.

[0061] Figure 3 This is a schematic diagram of a vehicle lighting assembly implemented using a DMD according to an embodiment of this application. Figure 3 In this system, the optical switch is implemented using a DMD. The optical switch controller is a DMD driver, and the processing module is implemented through a CPU. The headlight source, processing module, and detector are controlled by a synchronization module to ensure that when the DMD, detector, processing module, and DMD driver are imaging an external object, the headlight source is turned off, thus preventing the headlight source from affecting the imaging of external objects. The headlight assembly may also include a reflector to reflect the light emitted by the headlight source onto the DMD.

[0062] refer to Figure 3 In the sequence of steps, light from objects outside the headlights passes through the lens and enters the DMD (1). The DMD opens or closes some areas according to the modulation mode, and the light reflected by the DMD is detected by the detector (2). The detector outputs the light intensity value to the processing module (3). When the light intensity value output by the detector to the processing module accumulates to a certain amount, the processing module reconstructs the image containing the external objects through a reconstruction algorithm based on compressed sensing. After obtaining the reconstructed image, the processing module detects the target (such as a person or a car) in the reconstructed image and sends an image in which the target's corresponding area is black and the other areas are white to the DMD driver (4). The DMD driver will open or close the corresponding area of ​​the DMD according to this image (5). After that, the light emitted by the headlight source enters the DMD through the reflector (6), and no light will be emitted from the closed area on the DMD (7), thereby achieving the anti-glare effect.

[0063] Figure 4 This is a schematic diagram of a vehicle lighting assembly implemented using LCOS according to an embodiment of this application. Figure 4In this system, the optical switch is implemented using an LCOS (Liquid Crystal Optical System). The optical switch controller is an LCOS driver, and the processing module is implemented via a CPU. The headlight source, processing module, and detector are controlled by a synchronization module to ensure that when the LCOS, detector, processing module, and LCOS driver are imaging an external object, the headlight source is turned off, thus preventing the headlight source from affecting the imaging of the external object. Due to the different imaging principles of liquid crystals, the headlight assembly may include a PCS (Polypolarized Beam Splitter) to convert incident light into polarized light. The PCS can convert incident light into S-polarized or P-polarized light. The headlight assembly may also include a polarization beam splitter (PBS) for reflecting or transmitting polarized light. Different types of reflective films attached to the PBS result in different types of polarized light being reflected. For example, if a reflective film that only reflects S-polarized light is attached to the PBS, then the PBS will only reflect S-polarized light and not P-polarized light. P-polarized light will be transmitted through the PBS. The following explanation uses the example of PCS1 converting P-polarized light and PCS2 converting S-polarized light, with a reflective film on the PBS that only reflects S-polarized light. (If PCS1 converts S-polarized light and PCS2 converts P-polarized light, then a reflective film that only reflects P-polarized light needs to be attached to the PBS.)

[0064] refer to Figure 4 In the sequence of steps, light from objects outside the headlights passes through the lens, is converted into P-polarized light by PCS1, and the P-polarized light is incident on LCOS (1). LCOS opens or closes certain areas according to the modulation mode. The P-polarized light is reflected by LCOS and becomes S-polarized light, which is detected by the detector (2). The detector outputs the light intensity value to the processing module (3). When the light intensity value output by the detector to the processing module accumulates to a certain amount, the processing module reconstructs the image containing external objects using a reconstruction algorithm based on compressed sensing. After obtaining the reconstructed image, the processing module detects the target (such as a person or a car) in the reconstructed image and sends an image in which the target's corresponding area is black and the other areas are white to the LCOS driver (4). The LCOS driver will open or close the corresponding area of ​​LCOS according to this image (5). Afterwards, the light emitted by the headlight source is converted into S-polarized light by PCS2 (6, 7). After being reflected by PBS, the S-polarized light is incident on LCOS (8). No light will be emitted from the closed area of ​​LCOS. The light reflected from the open area of ​​LCOS changes from S-polarized light to P-polarized light. The P-polarized light is transmitted through PBS and emitted through the lens (9), thereby achieving the anti-glare effect.

[0065] Figure 3 and Figure 4 The process of image reconstruction and target detection by the processing module in the embodiment is referred to Figure 2 The relevant descriptions of the embodiments will not be repeated here.

[0066] As shown above, by using a light switch in the vehicle headlights to image external targets and then turning off the area on the light switch corresponding to the target, the effect of partially blocking the headlight illumination area can be achieved, thus achieving the purpose of anti-glare. At the same time, it eliminates the need for a conventional camera for imaging and avoids the coordinate transformation process required by existing technologies to adjust the position of the camera and the headlights.

[0067] Figure 5 and Figure 6 These are schematic diagrams of the structure of an imaging component according to an embodiment of this application. Figure 5 In this system, the optical switch is implemented using a DMD. Figure 6 In this process, the optical switch is implemented using LCOS. The specific imaging process is as follows: Figure 2 , 3 The embodiments in steps 1 and 4 are similar and will not be described again here.

[0068] An imaging component can be applied to a projection device. This component can detect the position and movement of a user's hand, determine the user's current operation based on the hand's position and movement, and update the projected image accordingly, awaiting the user's next action. For example, if the projection device is currently projecting an application screen containing icon buttons, and the imaging component detects the user clicking an icon button, then the next image displayed by the imaging component will be the screen after entering the application. Or, for example, if the projection device is currently projecting a photo, and the imaging component detects the user double-clicking the photo, then the next image displayed by the imaging component will be a magnified version of the photo.

[0069] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vehicle lighting assembly, characterized in that, Includes lenses, optical switches, processing modules, and detectors; The lens is used to converge the reflected light from the target object to obtain a first beam. The optical switch is used to reflect the first beam according to the modulation mode to obtain the second beam; The detector is used to detect the second beam; The optical switch is also used to close the area on the optical switch corresponding to the target object according to the first image, and to open the area on the optical switch other than the target object, wherein the first image is generated according to the second light beam; The processing module is used to generate a second image based on the detection result obtained by the detector detecting the second beam, the second image including the target object; The processing module is further configured to detect the corresponding region of the target object in the second image, and generate the first image based on the corresponding region.

2. The vehicle lighting assembly according to claim 1, characterized in that, The optical switch is used to reflect the first light beam according to the modulation mode to obtain the second light beam, which includes: the optical switch is used to open a first region on the optical switch according to the modulation mode, and to close a second region on the optical switch; the second light beam includes the light reflected from the first region.

3. The vehicle lighting assembly according to claim 2, characterized in that, The vehicle headlight assembly also includes a light switch controller, which controls the light switch to reflect the first light beam according to the modulation mode.

4. The vehicle lighting assembly according to claim 3, characterized in that, The optical switch includes multiple optical components, and is used to reflect the first light beam according to a modulation mode, including: The plurality of optical devices are used to reflect the first beam according to the modulation pattern; The optical switch controller is used to control the optical devices in the first region to turn on, and to control the optical devices in the second region to turn off.

5. The vehicle lighting assembly according to claim 4, characterized in that, The optical switch controller is used to control the optical devices corresponding to the area of ​​the target object to be turned off, and to control the optical devices in areas other than the target object to be turned on.

6. The vehicle lighting assembly according to claim 4 or 5, characterized in that, There are multiple modulation modes, and each modulation mode corresponds to a second beam.

7. The vehicle lighting assembly according to claim 6, characterized in that, The more pixels the optical device corresponds to, the more modulation modes there are.

8. The vehicle lamp assembly according to any one of claims 1 to 5, characterized in that, The optical switch is a digital micromirror device (DMD).

9. The vehicle lamp assembly according to any one of claims 1 to 5, characterized in that, The optical switch is a silicon-based liquid crystal (LCOS).

10. The vehicle lighting assembly according to claim 9, characterized in that, The vehicle headlight assembly also includes a polarization converter PCS, which is used to polarize the reflected light from the converged target image to obtain the first beam.

11. The vehicle lamp assembly according to any one of claims 1 to 5, characterized in that, The vehicle lighting assembly also includes a vehicle light source, and the light switch is also used to reflect the light emitted by the vehicle light source.

12. The vehicle lighting assembly according to claim 11, characterized in that, The vehicle light assembly also includes a synchronization module, which controls the vehicle light source, the detector, and the processing module. When the detector and the processing module are working, the vehicle light source does not emit light; or, when the vehicle light source is emitting light, the detector and the processing module do not work.

13. A means of transportation, characterized in that, Includes the vehicle lighting assembly as described in any one of claims 1 to 12.

14. An imaging component, characterized in that, Includes lenses, optical switches, detectors, color wheels, light sources, and processing modules; The light switch is used to reflect the light emitted by the light source, and the color wheel is used to add color to the light reflected by the light switch to present the first image; The lens is used to converge the reflected light from the target object to obtain a first beam. The optical switch is used to reflect the first beam according to the modulation mode to obtain the second beam; The detector is used to detect the second beam; The light switch is also used to reflect light emitted by the light source according to the first image, and the color wheel is also used to add color to the light reflected by the light switch according to the first image to present a second image. The content of the second image is different from the content of the first image, and the first image is generated according to the second light beam. Before generating the first image, the processing module is further configured to generate a second image based on the detection result obtained by the detector detecting the second beam, the second image including the target object; The processing module is further configured to detect the corresponding region of the target object in the second image, and generate the first image based on the corresponding region.

15. The imaging assembly according to claim 14, characterized in that, The optical switch for reflecting the first light beam according to a modulation mode includes: the optical switch for opening a first region on the optical switch and closing a second region on the optical switch according to the modulation mode; the second light beam includes light reflected from the first region.

16. The imaging assembly according to claim 14, characterized in that, The imaging component further includes a processing module; the processing module is used to generate a first image based on the detection result obtained by the detector detecting the second beam, the first image being used to indicate whether the optical switch opens or closes a portion of the upper region of the optical switch.

17. The imaging assembly according to any one of claims 14 to 16, characterized in that, The optical switch is a digital micromirror device (DMD).

18. The imaging assembly according to any one of claims 14 to 16, characterized in that, The optical switch is a silicon-based liquid crystal (LCOS).

19. The imaging assembly according to claim 18, characterized in that, The imaging component also includes a polarization converter PCS, which is used to polarize the reflected light from the converged target image to obtain the first beam.

20. A projection device, characterized in that, Includes the imaging component as described in any one of claims 14 to 19.

Images